After oxidation with nitric acid and hydrochloric acid, testing should be performed promptly. Unused samples may be stored at -80 °C, but the method has not been validated. No stability data are available for samples stored after treatment.
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MAK130
Chromium Assay Kit
sufficient for 250 colorimetric tests
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| Do Państwa/SKU | Dostępność | Cena netto |
|---|---|---|
1 kit | Przewidywany termin wysyłki21 października 2026zSchnelldorf Distribution | 2400,00 zł |
Informacje o tej pozycji
NACRES:
NA.84
UNSPSC Code:
12161503
2400,00 zł
Przewidywany termin wysyłki21 października 2026Szczegóły
Pomoc techniczna
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Pozwól nam pomócusage
sufficient for 250 colorimetric tests
application(s)
cosmetics
environmental
food and beverages
detection method
colorimetric
relevant disease(s)
cancer
storage temp.
−20°C
General description
Chromium, an essential trace element, is a transition metal that primarily exists in two stable oxidation states, hexavalent [Cr(VI)] and trivalent [Cr(III)]. Chromium is widely used in various industries such as electroplating, leather tanning, chrome paint, dying, hardened steel, ceramic, and glass. Cr(VI) is produced almost exclusively by industrial processes; whereas, in nature chromium primarily exists in its trivalent form. Cr(III) is generally regarded as nontoxic due to its poor absorption. Cr(VI) is considered a pulmonary carcinogen and has tested positive in genotoxicity tests. Cr(VI) is considered a serious pollutant in many water streams due to its carcinogenic potential. In trace amounts, Cr(III) may be required for glucose and lipid metabolism.
Application
This kit is suitable for the detection of chromium in biological, environmental, food, and beverage samples.
Biochem/physiol Actions
In this kit, chromium is determined in a simple, one-step assay in which Cr(VI) forms a specific complex with a chromgenic dye, resulting in a colorimetric (480 nm) product, proportional to the chromium present. Cr(III) can be converted to Cr(VI) with nitric acid/hydrochloric acid, allowing the determination of Cr(III) and/or total chromium [Cr(III) +Cr(VI)].
Features and Benefits
Compatible with high-throughput handling systems. Can be adapted for use with cuvettes.
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Ta pozycja | |||
|---|---|---|---|
| description sufficient for 250 colorimetric tests | description sufficient for 100 colorimetric or fluorometric tests | description sufficient for 500 colorimetric tests | description sufficient for 200 colorimetric or fluorometric tests |
| usage sufficient for 250 colorimetric tests | usage sufficient for 100 colorimetric or fluorometric tests | usage sufficient for 500 colorimetric tests | usage sufficient for 200 colorimetric or fluorometric tests |
| detection method colorimetric | detection method fluorometric, colorimetric | detection method colorimetric | detection method fluorometric, colorimetric |
| storage temp. −20°C | storage temp. −20°C | storage temp. 2-8°C | storage temp. −20°C |
| application(s) cosmetics | application(s) pharmaceutical | application(s) - | application(s) cosmetics |
| relevant disease(s) cancer | relevant disease(s) gastrointestinal diseases; cancer | relevant disease(s) gastrointestinal diseases; cardiovascular diseases | relevant disease(s) cancer |
signalword
Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Met. Corr. 1 - Repr. 1B - Skin Irrit. 2
Klasa składowania
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 2
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What is the storage condition for sample after oxidation with nitric acid & hydrochloric acid? Do I need to process the assay right after ?
1 answer-
Helpful?
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Can I use Sodium Hydroxide to neutralized the samples via oxidation with nitric acid /Hydrochloric acid? I will need to add a lot of 3% ammonia solution to make sample pH to 7
1 answer-
This product has not been validated with Sodium Hydroxide for neutralization. Neutralization should be conducted with the recommended 3% ammonia solution for this kit, and any use of Sodium Hydroxide would require independent verification of compatibility.
Helpful?
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Regarding your MAK130 Chromium Assay Kit. When converting Cr3 to Cr6 in samples via oxidation with nitric acid. It states to "neutralize" the solution with 3% ammonia solution, it doesn't state the amount to use ie volume required for this?.
1 answer-
The amount of ammonia solution required can very from one experiment to the next; it depends upon the initial acidity of the solution, which can vary. It is recommended to add the ammonia dropwise until neutralization is achieved.
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